Home / 16,686.88-23,022.66-9,969.28

Finding the Fourth Proportional to 16,686.88, 23,022.66 and 9,969.28

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Solution

The fourth proportional to 16,686.88, 23,022.66 and 9,969.28 is: 13,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.88 : 23,022.66 = 9,969.28 : x
  2. Step 2: Convert to fraction form
    16,686.88/23,022.66 = 9,969.28/x
  3. Step 3: Cross multiply
    16,686.88x = 23,022.66 × 9,969.28
  4. Step 4: Simplify right side
    16,686.88x = 229,519,343.88
  5. Step 5: Solve for x
    x = 229,519,343.88/16,686.88
  6. Step 6: Final answer
    x = 13,754.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.